1) Which of the following is considered invertebrates? a) Eartworm b) Sponge c) Jellyfish d) All of them 2) Which of the following is pseudocoelomate? a) Flatworm b) Nematods c) Mollusks 3) The largest phylum in animal kingdom is ............ a) Arthropods b) Chordates c) Cnidarians 4) Which of the following has (have) closed circulatory system? a) Earthworm b) Fish c) Frog d) snake e) Sparrow f) All of them

Introduction in Classification

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